On arrival I spoke with the homeowner, she mentioned the outdoor unit was making a funny tapping noise the night prior, also mentioned she was having a water problem from the air handler closet. I went through the system and found that the fan motor wiring harness terminals had corroded from the motor head connection points. I also found the underside of the evaporator coil was completely matted over in dirt, dust and dog hair and had no air filter installed. The evaporator coil is extremely rusted and corroded as well, I used my electronic leak detector while onsite to check for leaks as well on the coil. I repaired the broken wiring terminal connections and tested system. Verified unit started backed up prior to leaving. The system is running at this time.